| Li1+2xTi2-xMgxP3O12固溶体系统结构31P NMR研究 |
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| 引用本文： | 岳勇,林祖襄.Li1+2xTi2-xMgxP3O12固溶体系统结构31P NMR研究[J].波谱学杂志,1993,10(3):329-333. |
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| 作者姓名： | 岳勇 林祖襄 |
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| 作者单位： | 1. 中科院武汉物理所波谱与原子分子物理国家重点实验室, 武汉 430071;2. 中科院上海硅酸盐研究所 |
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| 基金项目： | 国家自然科学基金青年基金 |
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| 摘 要： | 本文应用固体高分辨31P NMR技术,以P原子作为结构探针,对以LiTi2P3O12为基质的Mg掺杂固溶体系统快离子导体的结构进行了研究。并利用P原子第二配位层阳离子场强与其化学位移的关系,确定了不同化学位移31P NMR谱线与固溶体结构中P原子局部结构单元Q°之间的关系,解释了Mg的掺入所引起的晶体结构的变化。
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| 关 键 词： | 离子导体 NMR 磷酸盐 |
| 收稿时间： | 1992-10-05 |
~(31)P NMR STUDIES ON THE STRUCTURE OF Li_(1+2x)Ti_(2-x)Mg_xP_3O_(12) SYSTEMS |
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| Yue Yong,Deng Feng,Hu Hongbin and Ye Chaohui.~(31)P NMR STUDIES ON THE STRUCTURE OF Li_(1+2x)Ti_(2-x)Mg_xP_3O_(12) SYSTEMS[J].Chinese Journal of Magnetic Resonance,1993,10(3):329-333. |
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| Authors: | Yue Yong Deng Feng Hu Hongbin and Ye Chaohui |
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| Institution: | 1. State Key Lab. Magn. Reson. and Atom, and Mol. Phys., Wuhan Inst. Phys., The Chinese Academy of Sciences, Wuhan 430071;2. Shanghai Institute of Ceramics, The Chinese Academy of Sciences |
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| Abstract: | The structure of solid solutions Li1+2xTi2-xMgxP3O12, in which magnesium were doped, were studied by solid-state high-resolution 31P MAS NMR with P atom as a probe of the structure. The relationship between 31P NMR lines with different chemical shifts and the local structure units Q°in solid solution systems were determined by using a linear correlation between 31P isotropic chemical shift and field strength F of the cation of the second coordination sphere. These results give interpretation for the change of local structure due to the substitution of titanium by magnesium. |
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| Keywords: | Solid solution NMR Phosphates |
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